The 1990 season

Typhoon Steve (1990)

Typhoon Steve reached Category 4 in the Western Pacific between July 23, 1990 and August 5, 1990, with a lowest pressure of 940 mb.

Track and intensity

The whole track of Typhoon Steve, colored by strength, with the other storms of the 1990 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Western Pacific
Dates
July 23, 1990 to August 5, 1990
Peak strength
Category 4, 115 kt (132 mph)
Lowest pressure
940 mb (27.76 inHg)
Landfall
No; closest approach 365 km (227 mi)
Accumulated cyclone energy
20.5
Identifier
WP091990

Deaths and damage

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

Track

Time (UTC)PositionWindPressureStatus
Jul 23, 18:0016.1N 141.4E20 kt1004 mbTropical storm
Jul 24, 00:0016.2N 141.2E20 kt1004 mbTropical storm
Jul 24, 06:0016.4N 141.0E20 kt1004 mbTropical storm
Jul 24, 12:0016.6N 140.9E20 kt1004 mbTropical storm
Jul 24, 18:0016.8N 141.0E20 kt1004 mbTropical storm
Jul 25, 00:0017.1N 141.2E25 kt1004 mbTropical storm
Jul 25, 06:0017.6N 141.5E25 kt1004 mbTropical storm
Jul 25, 12:0018.2N 141.9E30 kt1004 mbTropical storm
Jul 25, 18:0018.7N 142.6E30 kt1004 mbTropical storm
Jul 26, 00:0019.0N 143.2E35 kt1000 mbTropical storm
Jul 26, 06:0019.4N 143.8E40 kt996 mbTropical storm
Jul 26, 12:0019.6N 144.1E50 kt992 mbTropical storm
Jul 26, 18:0019.8N 144.4E55 kt990 mbTropical storm
Jul 27, 00:0020.1N 144.6E60 kt985 mbTropical storm
Jul 27, 06:0020.5N 144.8E65 kt975 mbTropical storm
Jul 27, 12:0021.0N 145.0E75 kt970 mbTropical storm
Jul 27, 18:0021.6N 145.0E90 kt965 mbTropical storm
Jul 28, 00:0022.2N 145.0E100 kt955 mbTropical storm
Jul 28, 06:0022.9N 144.9E115 kt950 mbTropical storm
Jul 28, 12:0023.5N 144.8E115 kt945 mbTropical storm
Jul 28, 18:0024.0N 144.7E115 kt940 mbTropical storm
Jul 29, 00:0024.4N 144.7E115 kt940 mbTropical storm
Jul 29, 06:0024.9N 145.1E115 kt945 mbTropical storm
Jul 29, 12:0025.3N 145.6E115 kt950 mbTropical storm
Jul 29, 18:0025.7N 146.2E105 kt955 mbTropical storm
Jul 30, 00:0026.1N 146.7E95 kt965 mbTropical storm
Jul 30, 06:0026.5N 147.2E90 kt970 mbTropical storm
Jul 30, 12:0027.0N 148.1E90 kt970 mbTropical storm
Jul 30, 18:0027.5N 149.3E85 kt970 mbTropical storm
Jul 31, 00:0028.1N 150.7E80 kt970 mbTropical storm
Jul 31, 06:0028.8N 152.2E80 kt970 mbTropical storm
Jul 31, 12:0029.9N 153.8E75 kt970 mbTropical storm
Jul 31, 18:0031.2N 155.4E70 kt975 mbTropical storm
Aug 1, 00:0032.8N 156.7E65 kt980 mbTropical storm
Aug 1, 06:0034.4N 157.5E65 kt985 mbTropical storm
Aug 1, 12:0036.1N 157.9E55 kt985 mbTropical storm
Aug 1, 18:0037.9N 158.1E50 kt990 mbTropical storm
Aug 2, 00:0039.3N 158.4E50 kt992 mbTropical storm
Aug 2, 06:0041.2N 158.5E45 kt992 mbTropical storm
Aug 2, 12:0043.7N 158.5E35 kt992 mbExtratropical
Aug 2, 18:0046.0N 159.2E35 kt992 mbExtratropical
Aug 3, 00:0048.0N 162.0E40 kt988 mbExtratropical
Aug 3, 06:0049.8N 164.4E45 kt988 mbExtratropical
Aug 3, 12:0052.0N 166.0E45 kt982 mbExtratropical
Aug 3, 18:0054.0N 168.0E980 mbExtratropical
Aug 4, 00:0055.0N 170.0E980 mbExtratropical
Aug 4, 06:0056.0N 172.0E984 mbExtratropical
Aug 4, 12:0057.0N 175.0E984 mbExtratropical
Aug 4, 18:0057.0N 176.0E984 mbExtratropical
Aug 5, 00:0058.0N 177.0E984 mbExtratropical
Aug 5, 06:0059.0N 180.0E986 mbExtratropical
Aug 5, 12:0058.0N 182.0EExtratropical

Other Western Pacific storms of 1990

What this means

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Sources

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.